package com.tensquare.qa.interceptor;

import com.tensquare.tensquare_common.util.JwtUtil;
import io.jsonwebtoken.Claims;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @author zhc
 * @create 2019-04-17  12:56
 */
@Component
public class JwtInterceptor implements HandlerInterceptor {
    @Autowired
    private JwtUtil jwtUtil;
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        System.out.println("经过了拦截器");
        //拦截器只是负责把请求头中包含token的令牌进行一个解析
        String header = request.getHeader("Authorization");
        if(header!=null&&!"".equals(header)){
            //如果包含有Authorization头信息，就对其进行解析
            if(header.startsWith("Bearer ")){
                //获取令牌
                String token = header.substring(7);
                try {
                    //对令牌进行解析
                    Claims claims = jwtUtil.parseJWT(token);
                    String roles = (String) claims.get("roles");
                    if(roles!=null&&roles.equals("admin")){
                        request.setAttribute("claims_admin",token);
                    }
                    if(roles!=null&&roles.equals("user")){
                        request.setAttribute("claims_user",token);
                    }
                }catch (Exception e){
                    throw new RuntimeException("令牌不正确");
                }
            }
        }

        return true;
    }
}
